1. V. A. Andrunakievich and Yu. M. Ryabukhin, Radicals of Algebras and Structure Theory [in Russian], Moscow, Nauka (1979).
2. V. I. Arnautov and M. I. Vodinchar, ?Radicals of topological rings,? in: Mat. Issled., Vol. III, No. 2, 31?61, Kishinev, Shtiintsa (1968).
3. V. I. Arnautov, ?Radicals in rings with a basis of group neighborhoods of zero,? in: Mat. Issled., Vol. III, No. 4, 3?17, Kishinev, Shtiintsa (1968).
4. V. I. Arnautov, ?Complementary radicals in topological rings,? in: Mat. Issled., Vol. III, No. 2, 16?30, Kishinev, Shtiintsa (1968).
5. V. I. Arnautov, ?Complementary radicals in topological rings. II,? in Mat. Issled., Vol. IV, No. 1, 3?15, Kishinev, Shtiintsa (1969).